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Pension Plans and Other Post Employment Benefit Plans (Tables) | 3 Months Ended
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Mar. 31, 2019
Retirement Benefits [Abstract] |
Schedule of Net Benefit Costs [Table Text Block] |
| Three Months Ended March 31,
(In millions) | 2019 | 2018
Defined Benefit Pension Plans: |  |
Service cost | $ | 19 |  | $ | 34 |
Interest cost | 206 |  | 190 |
Expected return on plan assets | (296 | ) | (303 | )
Amortization of unrecognized loss | 1 |  | — |
Net periodic benefit credit | $ | (70 | ) | $ | (79 | )
Other Post Employment Benefits: |  |
Service cost | $ | 2 |  | $ | 2 |
Interest cost | 23 |  | 21 |
Net periodic benefit cost | $ | 25 |  | $ | 23 |

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- Definition Tabular disclosure of the components of net benefit costs for pension plans and/or other employee benefit plans including service cost, interest cost, expected return on plan assets, gain (loss), prior service cost or credit, transition asset or obligation, and gain (loss) recognized due to settlements or curtailments. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (h) -URI http://asc.fasb.org/extlink&oid=108410482&loc=d3e1928-114920 + Details
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